It was a very good movie, but I would like to say something to Thanos.

I'm not sure what you're trying to say here so this is my best guess.

I guess that if there were stones that gems could be teleport, change mattered, matter changed into something else, and rewind timetime could be rewound, the problems Thanos saidmade would have been manageable,. I guess so he should have made better use of those stonegems and properly discussed them and cooperated with the Avengers.

But I do want to see the world after thea population explosion, because I think Thanos' way is also fine if you can die without pain.

I'd like to speak English naturally, and idiomatically, not like a textbook, so please correct me as accurately as possible so that I cany sentences to help me speak like a native!

It was a very good movie, but I would like to say to Thanos.

I am not sure who or what Thanos is so you should explain that here.

I guess that if there were stones that could teleport, change matter into something else, and rewind time, the problems Thanos said would have been manageable, I guess so. I think he should have made better use of those stones and properly discussed it in more detail and cooperated with the Avengers.

Then fewerless people would have died.

But I want to see the world after the population explosion, because I think Thanos' way is also fine if you can die without pain.

You don’t normally start a sentence with but

It was a very good movie, but I would like to say something abouto Thanos.

I guess that if there were stones that could teleport, change matter into something else, and rewind time, the problems Thanos said would have been manageable, I guess so he should have made better use of those stones and properly discussed and cooperated with the Avengers.

But I want to see the world after the population explosion, because I think Thanos' way is also fine if you can die without pain.