At this point in my life this type of comment always realllly rubs me the wrong way when it's coming from a man. Off the bat disclaimer that of course SOME people are knowledgeably genuine and those don't count here in my reasoning - but I, like many others, have found that this popular opinion often comes from a very incorrect and biased place. Much like when people, mainly women, are accused of being unrealistic hopeless romantics due to societal upbringing and Hollywood influence, there seems to be this completely equivalent and prevalent incidence of men who have this idea of "their perfect woman" being effortlessly beautiful; yet, they still indulge in the complete opposite in a sexual way on a regular basis (most commonly being porn). In other words, I know that many men are only against plastic surgery because they would be ashamed of their SO being "fake" and NOT because they actually dislike the outcome. If you are someone who is just thinking about this for the first time, here answer this, after considering that MOST plastic surgeries do not look like some Pam Anderson meme and many of them are actually subtle and complimentary: are you legitimately only sexually attracted to saggy boobs, where you can tell regardless of the size that gravity is having an effect (think tear drop shape, with separation and no cleavage at all. In some cases closer to the belly button than the neck)? Because if the answer to that is honestly "no" then you're gonna fall into the type of dude who is being either a misogynistic hypocrite OR you might just prefer extremely small boobs that are very flat and don't have much gravity effect (nothing bigger than an A cup), which is fine and totally a thing. If it's neither of those (because of you're being honest with yourself you do want them perky AND big) then you should realize that literally all science is against you there and you're probably just a perve who wants to fuck teenagers