Not a bad idea. But not necessarily a good one. Petitions and letters make no difference on the federal level, and rarely on the state. They are only effective with local government (as long as you're not a major metropolitan area).
"They are only effective with local government "
Precisely how the border patrol issue finally got some of the western state governors to call state of emergency which starts a chain reaction then gets the attention of the federal government. Chain reaction start out small and builds into a rolling boulder.
If you so not speak out, then you have NO SAY.
Doesn't help? Doesn't matter?
Only if you do NOTHING does that apply.
"War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse. The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself."
John Stuart Mill - English economist & philosopher (1806 - 1873)