1. Most people don't write.
2. The people who write are not always competent.
3. The people who write often have an agenda, too.
What's the consequence of that? Imagine what the politicians receive: tons of messages of people complaining, most of which are factually wrong. What to do then? How to know who is right? It's genuinely hard.
EDIT: please write here: https://european-union.europa.eu/contact-eu/write-us_en
Example: https://www.lrb.co.uk/blog/2021/july/information-sovereignty
It only makes sense they'll prioritize big-business interests over those of the common folk.
It's a bit odd that Europe prioritizes American big-business interests I guess? Idk, as an American it does seem kinda like an odd choice.
How many European countries buy American weapons because they are scared of what would happen if they pissed off the US? And then they still get tariffs and threats of military invasion.