Why do former Eras hate on the next, like why do some old folk get mad just because younger people don't like old music. Every era goes through it?

[Arivor]

Honestly, dude you have been brainwashed by some BS that you apparently enjoy indulging in. Let me be blunt, nobody cares about what you listen to, think believe, wear, play or what gender you feel like being today. Nobody cares, and if you think that you are truly the center of everyone's universe and so important people are even thinking or caring about what you are doing... all I say is "Typical, shallow minded dysphoric teen..." you have a long time ahead of you to taste your words and realize that you are the only one who actually thinks about you all the time. Seriously, the rest of us are actually just thinking about ourselves... mainly.

Small correction, huge marketing companies do want to know what you like, so they can offer you stuff that they know you will buy. Hey, money is money, and they will use you to make as much as they can from you. Now, go get the highest paying job you can get, so you can buy more expensive stuff that we know you want.