The President can invite who he wants to the White House....in the recent past it had opened up , perhaps too much, to sycophantic entertainment and sports celebrities.

It should be more of an honour for them to be invited to the WH than for the WH to receive them.

As for disrespecting the US flag and anthem, the general public is beginning to turn their backs to the NFL and these antics are not going to help attendance or viewership.

Sports have made generations of Afro Americans extremely wealthy, it may well be that they are cutting off their own noses to spite their  faces, that the money tap may be turned off and their bank accounts dry up.