Right. And it applies to discrimination based on race, sex, age or disability but not political belief or anything else.
Of course, you've been told this, and even referred to the relevant legislation, and choose to pretend that your argument still has merit.
...such things are tolerable...
Well then, get busy and elect people who will change the laws.
In communications systems, it *SHALL BE MADE* to apply to political beliefs, or we shall be destroyed.
Your worry about communication companies "private" property, shall cost us all our own private property.
Communications systems must always be the public commons. We must force it to be so.