If you go to that article on the HSLDA site and use their link it is VERY easy to email your Senator. They even do the letter for you. A few clicks and it’s all over. Painless.
As for myself, I get tired of getting back form letter replies...
Thanks for your concern about...yada, yada, yada
The staff sees e-mails and replies to them, Senators don't. I'm many things and naive isn't one of them.
You write them an actual letter...and you still get back a form letter. {;^)
Hate to tell you but emails are ignored by congresscritters because they can be automated as you pointed out and therefore lack the passion a handwritten letter or phone call has.