The indiscriminate use of the drone strikes by Obama is the problem. And he knows they were indiscriminate because his administration lied about the extent of collateral damage. Don’t take my word for it- the New York Times reported on it- not exactly a bastion of conservative thought. However, it was almost universally ignored for the most part.
Frankly, you are missing my point. Trump is roasted for everything he says and does, yet Obama was an incompetent, bumbling fool as far as foreign policy and it was ignored.