No, this isn't a trial. It's OK to raise ideas up for others' consideration. The absence of obvious evidence doesn't mean the thing itself isn't happening.
There is also a big difference between one person's voice on a platform, and a decision-maker of the platform who is creating policy/process for filtering those voices.
It's not my job to disprove other's statement. It's their job to prove their statements when they make assertions. This is common argument religious zealots make. You can't disprove god, therefore god exists. It's silly at best.
I have yet to see any proof or evidence that 'elites' are engaged in such activities.
Bitching about 'the elites' is garbage. It is a contentless description unless you identify who you're bitching about, primarily used as a way to get others to agree with you by substituting their own conception of 'elitists'.
If you blame 'elites' with no further clarification for something, I'm going to assume you're pushing a dishonest agenda. If you were being honest, you'd identify your scary shadowy actors.
There is also a big difference between one person's voice on a platform, and a decision-maker of the platform who is creating policy/process for filtering those voices.