These online petitions are only meaningful to a part of the "big picture" when everyone signs, and it happens multiple times and persistently have good turn outs.
If you think about this, it only takes 2 minutes to do these petitions, and for 2 minutes of effort and the result is only worth 2 minutes. It is only worth something if tens of thousand of people spend 2 minutes on it, and it happens persistently.
I remember someone in the US said..."Snowflakes can make avalanche" by number. So true, even if you do not agree with their politics.
Only if many many many people sign this does it make any difference, and signing every petition available repeatedly. This means everyone needs to get on board, and get other people on board as well, for every petition out there.