susiecb I quite understand why you think it's futile to sign the petition, I used to think that way myself. However, I've campaigned vigorously in recent years on a number of issues and almost all have had at least some measure of success. At the very least I can say that I tried to effect change.
"The only thing necessary for the triumph of evil is for good men to do nothing" is a quote usually attributed to Burke, but what he actually said is: "when bad men combine, the good must associate; else they will fall, one by one, an unpitied sacrifice in a contemptible struggle."