Is it normal that i feel this way?

The way that sounds, maybe I could have felt something like that when I was 16, maybe I did to some extent. Actually, earlier than that I did think, that I didn't mind if a lot of the planet's human population would disappear, because I cared about nature and animals.
Nowadays, I do think one can argue that there is an overpopulation of humans, and I do think it has negative consequences, e.g., pollution.

With that said, I do think you should relax. You don't have to be angry with people to care about the environment.

You mention a lot of things in your post, and I will address a couple of them.

- "I hate human breeders and pro-natalists (people who are pro-birth). I hate them because they're ignorant, stupid, selfish, and apathetic."
That's hardly the case.

- "According to my last post, only 2 people agreed with me while the rest didn't give a rat's ass which proves my points above."
Because only 2 people agreed with you, people who have children are ignorant, stupid, selfish and apathetic?

- "MORE unneccessary humans into this world"
As opposed to a necessary human?

- "It'll be all on them once everything is scarce and gone to ruin"
Your love of people really shines through here. It's fine if you don't want to take responsibility for someone if they should have known better. But this implies that everything will be scarce in your lifetime, and that it is specifically because they had kids.

- "because they didn't keep their legs shut and dicks in their pants."
Are you angry at other people for having sex?

- "Kids age out of foster care and orphanages because people would rather have their "OWN" kids then adopt children who are in great need of parents."
You make a valid point. It seems that people don't consider adoption, unless they can't have children themselves. The contrast between the care for human beings in this part of your post and the rest is noticeable.

- "I find that breeding is narcisstic and selfish because breeders do it for themselves, not for the planet."
Why should they do it for the planet?

- 'Breeders have kids because they think " their biological lines are great and should stay around" and they want "Mini-Mes".'
How do you know this? I think people do what their instincts tell them to. You do too.

- "As if the majority of peoples' DNA should be replicated. Hell, even I know that my DNA is not good enough to pass on"
You don't think so, and that's fine, but the universe does not care if some DNA gets replicated, just as doesn't care if some sand is blown to westward in the desert.

- "I just hope that the rest of humanity opens it's eyes before it's too late."
You're only going to be alive for some 70-80 years, so don't worry too much about it.

It is sad that this is getting a low rating.
I agree with you %100.
Something else I am against is cloning simply because there are already enough people. There is no reason to make extra people when we can't even take care of the ones that are already here.

I completely agree, my opinion is probably highly controversial but I am against the use of IVF and surrogates, there are so many children who need homes, and yet instead of fostering or adopting we have people going to great lengths to create more children in an overcrowded world.