Twitter hosts a number of accounts whose purpose is to shill. Take the Krassenstein brothers for instance - they're paid to harass and Twitter pushes their comments to the top of the list. The same with other accounts who continually, day after day, attack Trump ... certain accounts and their anti-Trump comments get pushed to the very top of the list.

Don't take the shilling on Twitter seriously. It's nearly all astroturfing and propaganda promoted by their algorithms and paid protestor accounts.

https://www.thegatewaypundit.com/2018/09/resistance-hero-brian-krassenstein-admits-to-being-paid-for-hijacking-trumps-twitter-feed-in-secret-recording/

People might be jumping ship from Twitter but no one is jumping off the Presidents ship! Social Media and the MSM are trying to silence support for Trump so it looks like their narrative of everyone voting for Biden looks legit. They're also making it so you "like" the presidents tweets. Suppression!

Yes they are mostly bots.

Social media in general is destroying people’s brain chemical balances. Users stay in states of rage to draw attention to themselves for catecholamines and then get a flood of dopamine when they get the inevitable reactions. There are vast swaths of people that are addicted to living with these increased chemicals flowing through their brain. Technology has turned them into junkies using technology as a drug which rewards rage and constant monitoring for the responses to that rage. So when you are on twitter, you are basically observing junkies who are only there for the chemicals, and are only really interested in getting as many responses as possible. There is no logic to it, virtually everything you see is instinctual rather than logical.