We live under capitalism and there really isn't any way around it. You aren't exploiting people, you're just playing a game. It'd be kinda like asking if you're contributing to the exploitation of workers cause you bought something at Walmart.

Not any more or less than occasionally buying a beer or buying a new phone while the old one works well.

Shitty practices shouldn't be supported, but it's still possible to engage with them without supporting them too much.

I personally think there's soooo many games, the choices are so vast, it's really up to everyone individually if they get into one.

I also think it's important to send positive messages. E.g. if the game does something well, like a less exploitatory update, tell them you like when they do stuff like that.

Morality has nothing to do with it. Is it wasting your money? Is there somewhere better it could be spent for making you healthy, happy, or entertained. If not, play it, I guess.

Is it actually making you happy to play it? Because that's what made me quit the gacha game I was in for 5 years.

I play guild wars 2 and it has a "spend real money to get in game money" system, although it's probably one of the least predatory ones I've encountered. I don't really think it's a big deal, or at least it's nowhere near that of a gacha game (in fact I think they actually cap the amount you can buy per month to prevent people from going nuts and bankrupting themselves).

IMO I don't think you're contributing to exploitation by playing something like that unless you're involved in one of those blockchain games that have digital landlords lol