"Any" man? You are being ignorant on purpose now.

There are in fact people who believe in abstinence and wait until they are married to have sex. That is totally acceptable for them.

But many people do not. Saying that women need to remain virgins essentially is hypocritical, because I doubt you are saying the same about men.

You're totally ok with having sex with her - so if you break up, does that mean that you will never have sex again to spare another woman having to accept the fact that you've been tainted because you had sex previously?

If you think it is ok for men to have sex with multiple partners, and that they're not tainted for it, then you are being sexist. You are already being hypocritcal by choosing to engage in sex before you are married if you believe that people should only ever have sex with one person.

Many men do not support your view that they want to have sex only with virgins. It's archaic and sexist, and many men are not archaic nor sexist.

If it was such an issue to you, you should have never had sex with her. If you're going to continue thinking that you need to "forgive" her for her past, then get out of the relationship and give her the chance to find a much better man than you; one who isn't sexist, one who doesn't view her as essentially tainted property, one who will accept and love her no matter what, one who won't view her past as being an insult to him, etc.

ETA: You aren't going to viewed as a fool for your ex having multiple partners - how would they know unless you proclaim it to everyone and share her business? However, you are certainly (in my opinion) making yourself look like a fool by being so judgemental and cruel to your gf.