Twitter's own research shows they have more broadly amplified the right than the left. https://news.ycombinator.com/item?id=28953427 I for one could not be less shocked.
You (and temp8964) are engaged in, in my view, conspiratorial minded thinking. You imagine some great vast system working against a view. It's just not so. Governing a platform is hard, keeping things on the rails is hard. Not every decision is easy & clean & obvious. Taking the conspiratorial minded view, saying- this is not a democratic platform, this doesn't allow open conversation, is working against me- seems patently clearly obviously heinously untrue. To try to grind an axe over this is, to me, bogus. There's no evidence, no claim I can possibly imagine that justifies such extreme & radical shade casting.