Yes, Revillame is a hateful, insensitive, and crass man who simply does not belong in polite company let alone public television. I do not believe in censorship in any form, manner or circumstance but if I were to indulge a hypothetical, he (and one other) would be the best excuse for censorship.
He is not however the first and only one to "abuse" children or women on television for the sake of "entertainment" and of course for profit. Other shows on other networks also have done so through the years, though perhaps not to the same degree of crassness.
The formula of showing scantily-clad women gyrating their hips in unison for no discernible purpose didn't start with Revillame. That started a long time ago with another show.
The discovering of talented kids who would dress up like adults and would sing and dance like adults didn't start with Revillame. That started a long time ago also with that other show.
The only difference perhaps is that Revillame simply elevates crassness and insensitivity to a totally different level. If there were dementors for politeness and decency, Revillame would be the chief dementor; the five-star dementor as he simply sucks out all the decency in everything he touches.
Yes, Revillame is accountable for the utter insensitivity he showed to the 6-year old kid but also to his viewing public whom he continually insults with every word out of his mouth. But he is not the only one accountable. The parents of these children, the producers, the advertisers and the networks are also. Most importantly, so also the viewing public which does not switch channels or shut off the television.
File a case? Cancel the franchise? Boycott the show? Boycott the advertisers? All these are legitimate responses to Revillame's latest display. They, however, will not ensure that Revillame or others who wish to become like him will not do it again to yet another 6-year old or other scantily clad contestant on their inane segments.
You want to make sure something like this does not happen again? Change the way you view the people who view your shows. Do not pander to the least common denominator, instead raise that denominator. Put on shows that will raise awareness, educate, inform, provoke discussion (not revulsion) which are well-written, well-made, well-produced and are hip and fun enough to make sure that people do not switch channels. They may not earn as much money but they will earn you the gratitude and respect of your viewing publics. They may not rate as well as a show with scantily-clad gyrating women or kids forced to endure insults and taunts but they will certainly be remembered with great fondness and with much gratitude many years from now.
You do these? Then, Revillame et al. will have no choice but to find work in another solar system far, far away.