Far future mining question

I just had this question in my head that doesnt let me sleep well. So, in many decades in the future, when mining will be so hard that only giant mining farms will be able to do it, and 1 person home mining will no longer be a thing, wont that make bitcoin centralised again as there will be 2-3 mining giants providing transaction verifications?

If what i said is false can you please bother elaborating, thanks