I feel the exact opposite (regarding reciprocal tariffs).
If your neighbor makes demands and threatens to shoot themselves in the foot if you don't accept, responding by shooting yourself in the face does not seem like a good tactic.
US tariff policy gifts European manufacturers with a competitive advantage.
A small example from a hobby of mine: electronic music, synthesis, audio gadgets, etc. The last decade or two has seen an explosion of innovation in this space driven by small boutique outfits on both sides of the Atlantic. This has only been made possible because of access to Chinese expertise in manufacturing.
The effect of US tariffs is to hurt everyone - but hurt US based companies more. If based in the EU, you pay 0% duty on your low-value-add Chinese inputs and sell finished products to customers - duty free to 450m inhabitants of the EU and with 15% tariff to the US. The same operation based in the US - pays 100% or more on inputs - making it uncompetitive in both markets (for any reasonable range of margin). This is just one small niche/corner of the economy where US-based companies are seeing profits being squeezed.
The other reason to avoid emulating US policy regarding tariffs, is the impact of the flip-flopping and uncertainty on industrial and manufacturing investment. How can anyone intelligently make a long-term (decades) investment decision to build a manufacturing facility in the US when at any moment, your input costs could increase 100%? Or the tariffs you were relying on to allow you to compete with foreign operations could suddenly be lowered as part of a "deal". Or they could go up and down within the space of months or even weeks? Or that in 3 years, the policy will be complete reversed?
Introducing uncertainty and volatility into trade policy might seem like a winning move if you view the world in game theoretic terms - that the global economy is a zero-sum game. I feel that the current US executive sees the world this way - if any other country is doing well, then it must be at the expense of the USA and vice-versa. And this basic misunderstanding of trade and economics is driving these self-harming policies.
As a fellow European, given we have no influence over US policy, I suggest standing back as the US re-learns the painful lesson of history regarding trying to stimulate your economy by making industrial and manufacturing inputs more expensive and adding volatility and uncertainty to the business environment. It sucks for everyone globally because the world isn't zero-sum, the USA suffering doesn't benefit others, so the best policy for Europe is to just refuse to play the game and sit it out.