Jetbrains shows no signs of wanting to be a monopoly player in development tools. I've been a customer a long time, and I think they've done a great job of balancing making money with doing solid work and serving their customers. Microsoft, on the other hand, has a long history of willful domination and exploitation, and they've specifically done that with free products to kneecap competitors.
No, I like competitive marketplaces, as they're one of the core engines of capitalism. I deeply dislike willful monopolies and oligopolies in general, because their goal is to break that engine in ways that harm consumers and often society. Microsoft themselves I can take or leave now that they've been mostly defanged.
I also really like having good developer tools. Many of them come out of community-driven open source. But some of them cost money. And for those, I very much want there to be a competitive marketplace, so there are strong incentives for all players to keep improving.