to be fair, USA is very protectionist as well,

I'm having good laugh watching Americans call everyone protectionism but passing a law to force foreign company to sell their social media to an US company.

A tax like this will make the prices of some goods go up. Such price increases are measured as inflation.

This is a highly regressive tax. It's 50% on certain items below 5 EUR (soon 10) and less for items above that. Over the price, the rate goes down. For items at 50 EUR (100 EUR), it is only 10%.

Making cheap clothing in particular more expensive doesn't sound much like looking out for the 99%.

This is France protecting the 1%.