No one has answered the question:
If Tariffs are bad for the economy, why do over 150 nations have tariffs against the US? Are they trying to ruin their economy?
Most countries don't just put indiscriminate tariffs on all goods coming from their trading partners.
Historically some countries used tarrifs as a source of funds for government, just like most other taxes.
But because many countries have a Sales tax they don't need to tax imported goods twice, plus they value international trade and so generally broad tarrifs aren't used.
Some countries might specifically target tariffs on things that they want local businesses to produce to protect the local producers who are maybe struggling to compete on price. Countries could put tariffs on imports and/or subsidise local producers. The thought on this though, if local producers aren't able to efficiently produce these products then should the country use tax payers money to falsely create an environment where locals are producing things inefficiently. In this case it comes down to whether the country thinks these things are essential for national security. i.e. if the country goes into war or a global pandemic occurs and trading partners are unable to trade with your country, would your country be able to survive. So on these lines many countries support local farms and orchards, even if that means subsidising them or putting tarrifs on others.
But don't be fooled by what your current government are telling you. They are lying to you. They aren't putting on retaliatory tariffs. Many of the countries that USA are now slopping tariffs onto, aren't themselves putting tariffs onto USA. And certainly aren't putting broad tariffs onto all USA imports. Instead what they are doing is looking at their trade deficits e.g. USA is buying more products from a country than it is selling to that country, and pretending that this deficit is tarrifs that the other country is putting on USA.
So really it's not about tarrifs, it's about a trade deficit. And in response to this USA is putting large tarrifs across the board onto its best and most friendly trading partners, affecting both the USA and the trading partner's economies, creating inflation, creating trade supply problems, and just basically stuffing up international trade with freindly nations. People like Russia, China and many Arab nations are laughing as this is a dream come true for them, the West eating itself, going into Trade wars, Tarrif wars and pretty much stuffing up what makes the West so great, thriving and powerful. Putin couldn't have hoped for anything better than this.