If the question of racism has been raised in this case,

It has not. It is not an issue, except that Abedi probably hated British people, as you clearly do.
("We are a deeply racist country." Racist signs "are common throughout Britain." Obedi's friend was killed by British racists.)

The killing of his friend was gang related, not racist.
The Manchester Police are quite clear it was not a racist killing.
The Prosecutors accepted their evidence and a string of gang members are on trial for murder.

The only person in the world who supposedly said it was racist is an anonymous "friend" of mad bomber Abedi, and that only according to one foreign news agency (but copied by Mail Online).
That was weeks ago and the story was never picked up by any other publication or broadcaster.

You have no case.