Why is my jungler camping bot and enemy jungle camping top?

Botlane is worth more gold and more impactful in most games.

Because your jungler is smart and the enemy jungler is premade with their top.

That's because junglers are troglodytes

Because there are such things as 'ungankable' lanes (e.g. anything except a fed Jax or Yi REALLY doesn't want to gank a Morde), or one jungler straight up cannot fight another (e.g. if my team has a Rammus, the enemy Xin will automatically lose any countergank into the same lane).

Personally whenever I'm jungle, if I'm playing something tanky and generally slow, I will warn anyone facing something like Talon or Zed that there is very little I can do to help them, and it makes more sense for me to get the other lanes ahead.

A jungler should go where they will have the greatest positive effect, and sometimes that means sitting the enemy in the lane on the far side of the map to you.

Also, if you're shoving the enemy laner in at his tower the whole time, you're gonna get ganked, repeatedly....

This is really tilting because I'm a top lane main. Enemy jungle just gets their asses fed off of me and win the game. Im warding bushes and all but all they do is tower dive me at lvl 6 mostly

Maybe because both mids are camping opposite sides of their teams jungle or back afking in base?

They also could be feeding the Poros.

because your jungler is aware that better bot ALWAYS wins, so he tries to secure his only win condition?

that's the game.