Your second paragraph could be summed up as: we chose the destination years ago, so there’s no point changing course.
Will wind and solar will be sufficient to replace all the gas with heat pumps, and keep them running every day in the winter? I would also be hesitant to give up gas heat, without understanding where the replacement electricity will be coming from. “Demand response” means that the rich stay warm, while industry migrates to countries with better price stability… or continued CO₂ emission to avoid those outcomes.
Perhaps in the end it doesn’t really matter, since the transmission infrastructure for EU-wide renewables will also be useful for buying nuclear from the countries that are investing now.