I've heard many women on Reddit say that sex isn't a need and that men use it to "spread their masculinity" and to "excercise their power over women". They say that for them masturbating once a week is more than enough to satisfy their needs, everything beyond that is unnecessary and since they are like this, the same is for men.

Men and women just aren't the same, and definitely not when it comes to sex. In fact, in some areas the factor of difference is so high, the averages aren't even comparable. Only because getting off once a week is enough for you it doesn't mean that men feel the same, heck even some women don't. While for women once a week is typical (and that's a fact) men need (about) three times as often.

For most men sex IS a need. Not like food or water but you still feel it missing in your life. For some it's no big deal and easy to ignore and for some it's so bad they ruin their relationships, finances and do unspeakable things in order to get some.

For men sexuality is a vital component in life that if not satisfied regularly uses up a parts in their everyday life. Testosterone is (directly or indirectly) like a drug and people who never experienced it find it hard to believe. Just look on all those guys in dating apps, the internet and in social life behaving inappropriately, like total morons. How many women like that do you see? If you ARE different, then congrats, you're a minority, every human is different. But generally seen this is the way it is.