Yes! Being active politically is always important.

Be civil and polite at first, you want these people on your side after all. But don’t be afraid to hold back if they respond with bullshit either. They are your representative, make them represent you and hold them to account if required.

Encouraging friends and family to write is usually a good idea too.

Not being politically engaged, I feel, is one of the main reasons for the downfall of democracy throughout the globe. Too many people think ticking a box every 4-5 years is all they need to do.