Because weapons will be used and you will have no control over how. And it being a European company doesn’t mean this weapon won’t be sold to Israel eg

Given the current state of things I would say that it's really easy to pivot to "let's sell weapons to whoever wants them". Still presenting a product as a way to defend democracies is comical. At the end of the day, people with money will buy these things and it doesn't matter who because oversight is scarce.

Sure, but what _is_ the practical solution to the invasion of a foreign military power on your home soil then? Do you think these systems should only be developed by the government? And if so, do you then apply the same logic to anyone working in the government?

Idea. They can develop all they want, only the government should be the one buying and selling weapons. That way if a government decides to sell weapons to genocidal maniacs, people can vote that government out.

This is functionally what already happens. The market to sell into for defense is almost entirely B2G, the only exceptions being places where the existing government is not very strong or centralized