Now, I'm sure Elon Musk did think about these changes before he applied them, having his own reasons for even coming up with these ideas. However, from the backlash he is getting from a lot of users, I believe it was indeed better if we had built his own social media platform from scratch instead of buying Twitter that a lot of people already have an established opinion and experience using.
I believe what he did when bought Twitter was to buy a wide community of toxic internet users. He wants to be in direct touch with these people, because he knows how to feed them and keep them active virtually inside an environment they feel it's safe and confortable for them, while they generate traffic, engagement and lots of polemics through fake news, retarded memes, demotivating or extremist ideas and opinions regards the world.
Twitter or X is a pool of useless informations posted in real time which can lead someone to waste their whole day or life scrolling their feed with the content I mentioned above. Not that another social medias are much different from that, but I guess X has an extra pinch of sadism others lack, thanks to the 'genius' of Musk.
From a rational and unscrupulous point of view aiming only financial and influence gains, he did nothing wrong. It's working greatly for him...
I don't think Twitter (X) is too toxic a community, I've met a lot of gaming communities that I could call really toxic.
On the contrary, the Twitter community is one of the most influential in the world. And this is true, because ministers of different countries and presidents have been registered there, and there are also many official accounts of different campaigns that make quite official statements there.
Therefore, this is a great investment for Elon Musk, he has gained the power to manipulate in a place that allows him to manipulate the most unpredictable place on earth - the cryptocurrency exchange.