Black actors are awesome, but there shouldn't be a habit of remakes where they replace the white actor with a black actor.
What, we're supposed to think it's awesome now that there's a black guy instead of a white guy? That's ridiculous.
I highly doubt that blacks would appreciate replacing an Eddie Murphy or a Will Smith movie with white dudes.
In any case Jaden Smith's Karate Kid movie is bootleg and it deserves to be parodied as much as possible.