This is not supported by facts. People won't spend money on equipment they don't need. Most places in France do not need air conditioning (or did not need it).

It makes no sense that a building owner or transit agency would spend limited funds on something that they do not need.

One may argue that the government of France should have imposed some mandate that people install air conditioning, similar to how Texas failed to mandate insulation for its natural gas infrastructure.

Such mandates would not have been popular unless they were funded. And even then I doubt they would have been popular but they also would have come with considerable cost to the taxpayer.

There is additionally a cultural feeling in some parts of Europe (Germany) that conditioned air is stale and unhealthy. This is not "ideology" but it will certainly contribute to the idea that mass spending on rarely used equipment is wasteful.

Finally, the entire world is unprepared for global warning, Including the USA.

If the next massive climate disaster hits the US, say a drought or mega storm will the message be that "US climate denial ideology caused this" or will it be "nobody could have predicted this; random act of God; thoughts and prayers; nothing to be learned?"