As someone else pointed out, his entire perspective of Twitter is skewed by his own usage. His following and crypto bs have resulted in all of his tweets being bombarded by bots trying to get attention. It severely impacts his ability to use Twitter, and he's been disillusioned into thinking this is everyone's experience of the platform.

When you look at it from such a narrow perspective, I'm sure yeah, bots are a pretty big issue.

I guess his goal was to kill it since the beginning, or since he was forced to buy it.

He sees his employees as political enemies

And now that normal people are gone, most those still here are bots and people influenced by bots so maybe he think the "vast army" is growing but its just the proportion that grows.