I feel you are over-reacting with this one - you have a very limited number of dislikes on your videos and most of those still have an incredibly high view-count. You are looking at older youtube videos and not really considering that you still have a larger amount of likes compared to dislikes and some of your newer videos (At the moment) have no dislikes.
Most of the videos that have been disliked are ones where its not really your content per say, such as the episode compilation videos. The news reporting videos generally tend to get less dislikes. A few of the early videos received one or two dislikes, but that is incredibly natural.
As for comparing it with TTV's newest video, DONT. Put simply TTV has had a longer time to establish themselves, it is also a newer video so chances are all those hoping to watch the video have not yet. Chances are their video will get disliked because there are a lot of people watching, the more people that watch the higher chance you'll get a dislike or few.
Focus less on the dislikes and more on making your MOC videos/news/etc,, - i know it can be difficult, but you need to focus more on the fact that tons of people are liking and commenting on your content.
Its nothing really to do with the Biotube community and its a little unfortunate everyone is jumping to that conclusion given the amount of dislikes you are receiving is fairly minimal - chances are its just someone who either wanted to dislike to cause a reaction or just someone who didn't enjoy the video.