"Thank you for your thoughts on this matter, I didn't read them. Here is a boilerplate statement espousing all the great things about this bill that you specifically criticized in your message to me. Please don't reach out again."
Believe it or not, there's room for both. If a meeting with a senator doesn't produce results, is it really being involved with politics, based on your criteria?
We need to do the easy stuff, and we need to do fun stuff. If you're unwilling to write an email, then that just means you're unwilling to do one of the easiest methods of political engagement.