People who have separated with an honorable discharge are authorized to wear their dress uniform at ceremonies or public events, but that’s about it.
This guy obviously never served a day in his life, and he most certainly never earned his Ranger tab. If you told a real Ranger to remove his tab or else, that guy would fight with everything he had.
I have known many rangers and USMC people. They will fight to the end to defend their colors. They will call out people who wear t shirts or jackets that imply they were members.
They sweated and bled for the right to wear the globe and anchor or the ranger tab. And for some poser to try and pass themselves off as being one is sad.
Maybe a week in Boot Camp or Ranger school will cure them.