Not really sure what to say to this. It's a screenshot (from the tech-bro-in-chief no less) of a ChatGPT response, no prompt included. We are discussing a current event.
As an attempt at a response, the UK is not party to the "EU AI Act" or the "DMA/DSA", we left before they were passed as law in the EU. The UK has its own "Digital Markets Act", but it is not an EU regulation. The GDPR is an inherited EU regulation.
The AI summit was French led, to get a global consensus on what sort of AI protections should be in place it looks like. The declaration was specific to this summit.
Meta and other data mining businesses are constantly complaining about the GDPR because it limits their ability to steal personal information and they have to comply with data residency, consent and deletion regulations. They also "play dumb" and blame compliance with a regulation they want gone, or make a big deal out of compliance to turn public opinion.
When there is a difference in regulation between major economies there may be an advantage to be had, but my feeling is that the GDPR (or similar) is not the main reason European tech companies are unable to compete with the US. There is no equivalent of Silicon Valley in Europe that combines talent and investors in one place.
It's a hard problem to solve when Europe is made up of multiple countries and cultures, even if the EU has aligned some key things.