If you shout insults at Macron, you will be prosecuted. If you display insults about Macron, you will be prosecuted.
https://www.rue89strasbourg.com/insulte-macron-selestat-mani...
https://www.ouest-france.fr/societe/justice/un-homme-de-77-a...
You see, China and the US aren't that different you know. In the US, I can go up to Donald Trump and say "I don't like Donald Trump. The policies of the republican government are rubbish!"
In China, I can go up to Xi Jinping and say "I don't like Donald Trump! The policies of the republican government are rubbish!"
"None are more hopelessly enslaved than those who falsely believe they are free." – Johann Wolfgang von Goethe
Also it's never been true you could just approach the American president or the Chinese one