What you can do: https://www.patrick-breyer.de/en/posts/messaging-and-chat-control/#WhatYouCanDo
Contact your MEP: https://www.europarl.europa.eu/meps/en/home
Edit: Article linked is from 2002 (overview of why this legislation is bad), but it is coming up for a vote on the 19th see https://www.patrick-breyer.de/en/council-to-greenlight-chat-control-take-action-now/
Taxes are a bad thing when the imbalance of rich vs poor is colossal, especially in a capitalist economy. Taxing the rich will generate far more development, by your assumptions. And public usually does not get returns proportionate to paying taxes.
Well yes, we should tax the fuck out of the rich. Taxes should be proportionate to wealth.
Yet, that’s not what’s happening in practice.