Why can't wwe just let Brock Lesnar be a monster heel?

I don't like that they are making Brock Lesnar a face, he should've stayed a heel. Although her's not technically a heel they are making Heyman say things so the crowd will cheer.

Brock Lesnar is tool late in his career to be a heel. He's a monstrous neutral character, which means he's good and bad, and can do whatever the hell he wants and fans will love him.

I think WWE needed to refresh things and I don't see why not Brock as a face. But can't see Heyman as the good guy, maybe he would turn on Brock.

They don't play to the crowd. Brock is doing the exact same thing when he was heel - just dominating and beating the crap out of everyone.

Can't blame the crowd for liking him, they don't have a good babyface to cheer for. All the babyfaces right now aren't that impressive compared to Lesnar

He can't be a heel since the fans are always cheering him.

they are not trying to make him face it's just that fans have been cheering for him so they are playing to the crowd