I think to suggest ALL those booing were racist is a little judgemental and may be in some cases unfair, it wont be that black and white. I never knew of the booing till i read about it on here. A few people around me had no idea what the break was for and why it was necessary. Someone suggested that they have natural breaks in play where trainers are on the pitch so small opportunities arise in games where if needed a player can take on fluids etc, it is all very complexed and nuanced and frankly balances have to be weighed up as I am sure they were, but the information as to why is sketchy to be fair.
If there is a medical reason why it is necessary then I fully support the break, if it means some players are disadvantaged because of religious traditions compared to others because of a particular situation I think it is only fair and reasonable that the game is made as level a playing field as possible. However that has to be balanced with the nature and purpose of the game itself.
I am sure that of those apparently booing some will have been outright racist, the majority though? I am not so sure directly, more indirectly i would suggest, mainly through lack of thought, understanding, education, knowledge and ignorance than being openly racist. Some will have been sheep and some will have just been upset at a break in play and may be embarrassed now having found out why.
I guess what I am saying is tolerance is a two way thing and it is easy to jump on a bandwagon taking the moral high ground without the actual knowledge as to why individuals do as they do. and wrongly assuming it is always the race card. I think, it says more about the state of and lack of education on the matter myself, poor social awareness and being culturally and medically ignorant than being overtly racist per se. It is as easy for the booers to be as misplaced with their booing as it is for the afronted to be wrongly judgemental as to the individual reasons surrounding it all in the first place, little in life is as black and white as we humans try to make it in order to suit our own narratives.
Peace love and harmony and if you took a drink break during the reading of this post, then I promise I will not judge you, unless you also went for a jimmy riddle too, as that then constitutes taking the p1$$.