IBM didn't want clones, it created the PS/2 to make a PC that couldn't be reverse engineered and cloned by the competition, but even then it was too late.
If IBM could they would have banned all clones, but as I said before OEMs weren't infringing any patents so they couldn't be sued nor stopped.
That was a considerable number of years after the PC rewrote the personal computer market. I don't think the PS/2 was on their radar when they did what they did with the first PC.
If IBM could they would have banned all clones, but as I said before OEMs weren't infringing any patents so they couldn't be sued nor stopped.