Why not? Only those who have nothing good to in life hate Luffy. Gear 5 is to the modern generation what Goku's PU was in his generation. Go cry over a corner that your faves don't get 0.1% the attention Luffy is getting at this time.
What you talking about ,
‘Ultra instinct sh@t gear 5 on popular and it is not even funny.
‘When ultra instinct came out, literally everyone and their mother went crazy over it and it only solution to Jiren (it is physical impossible to call him the fraud like people call Imu the fraud, ladio , lakainu , etc. ) Jiren negmdiff luffy and One piece verse.
Even oda know people hate gear 5 but he didn’t care about them and he know it .
You are lucky the Moro arc has not animated otherwise people will say Moro make Imu and kaido amd yonko look dogsh#t villain in compare to him. And it not even funny . DBS anime has not return for 5 years .
Dragon ball will be alway more popular than one piece , like it or not.