Whats the song? Kinda fire

Hmm alright. Dont lose hope and never stop aiming for the highest good, take care!

I kinda understand where you come from and i feel you.
Apparently there are two things to consider as justification from your point of view:
1. Others ridicule you
2. Unavailability of a virgin significant-other
For 1. i mean i see how peer pressure is a strong force but justifying sleeping around because of that and perpetrating the idea that thats okay is not helping anyone. On the contrary, it justtifies other people giving up their standards as well creating an endless sprial of not only accepting but also promoting that even though you should know better from experience.
For 2. I see your problem clearly and i think it is a significant problem. Girls around your age have varying degrees of sexual experience and so trying to get into a serious relationship with them can be difficult and i wouldnt want to engage with someone who has a lot experience as well if i have none. As a side note, i dont condemn people who had sex with their previous partner(s) in serious, long-term relationships as long as they meant it earnest with their exes (even though its better to be a virgin anyway, but id be a hippocrite if i demanded virginity until marriage). Now the problem is you see the only reasonable option out of that pit is by also engaging in what you yourself acknowledged is degenerate. You sleep around to match up with your potential future girls degeneracy. Therefore you lower your standards in conjunction with betraying your ideals and giving into this idea that you had no other choice. I mean fair enough i dont want to tell you that you are wrong or anything (maybe it works out for you, who knows) but in my world you are sabotaging yourself and lowering your chances of finding the one you are meant to find. You are just lowering your (self-)worth to make it easier for you. Fair enough lifes hard but telling others that this is a "good" option when in reality you are just compromising by sabotaging yourself and straying from your ideals whilst knowingly reducing your chance for real meaningful happiness with the girl you are looking for is just adding insult to injury. This world does not need more degeneracy and excuses for it. If anything you should discourage others from following your footsteps (even though you want to protect them from bitterness). Bitterness and loneliness are temporary, a divine bond between man and wife is eternal.

Not to judge but your take sounds like you are probably an atheist. People who believe in a divine entity and marry before said entity in a church see way more meaning in it than just a "legal agreement". Its a divine bond to be precise. But that model of thinking is rarely found in todays day and age... Sadly...

So youd rather tell guys, who are "still" a virgin by 21, to go be degenerate and sleep around without meaning (even if just once) than try and find the (non-)virgin girl that really matters to you and lose it with her? Just that suggestion is in my opinion already degenerate. Why is it so important to begin with to not be a virgin just because your girl is also not?

But thats not even really my point, just wanted to point that out. I also can speak from experience and i am so ***ing glad i didnt become a ***boy chasing girls or whatever. I always knew what the goal was: Finding the one to live and die with. Thats all that matters. Everything else is pretty meaningless in comparison. Once you see and accept that you can only ever seek your true love. By sleeping around you are actively sabotaging that goal. Without a doubt that also is the reason why dating in todays society, as well as marriage (and subsequent divorce rates) are in the current state. If people didnt buy into the "sex = good"-meme that is shit into our face in every ad/tvseries/whatnot we wouldnt be where we are right now, in a considerably terrible state as a whole. The promotion of porn is also doing its part in eradicating what is now considered "traditional" relationships which actively leads to people suffering for nothing. That, of course, is just my opinion but i think reality gives my statements credit. I dont know what you experienced or why your felt bitter about something relating to that, but i think it likely the reason for it is not rooted in being a virgin or not (you or your girl) but the perception and horrible practices around todays image of sexuality and intimacy. Realistically you always have a choice, even kissless at 21 guys. And no one should ever feel bad about not having sexual experience because all that matters is the experiences you make with your one true love.

Also check out the comment from notrickastley. I see you commented on it but i just cant help but appreciate people like him.

Telling people to go sleep around just because others do it or because you are gonna "miss out" is most degenerate. If you really knew about how pairbonding works and how negatively previous sexual experiences affect that you wouldnt spew such nonsense around.

Exactly my first thought xD

I had a friend who fell in love with this girl that was introduced to him by one of his escapades back then. After he confessed to her she rejected him by saying that he was just a referral from the friend they got introduced from because he was well endowed and good in bed. Sometimes it really do be like that.

What game is this?

Wow, indeed very interesting! Thank you for the insight!