>Considered a super-power
Consider that after WW1, France had a huge debt, lost a lot of its population, had their most fertile/productive lands and their factories obliterated, and still suffered the crisis of 1929. It wasn't a great power anymore, it didn't have the mainpower to halt a full German offensive.
>had time to build up defenses
Not really.
The Maginot line was built up, that's not a problem, and it did its work : Make sure that the krauts don't try to invade through Alsace.
Still, does this mean the french army was ready and built up ?
Their Air Force was still in ruins. They didn't spend their time during the Phony War sitting and doing nothing, when the germans invaded, they were still desperatly building new airplanes and forming pilots. But the french air force was lacking, they didn't have enough radios, their doctrine wasn't ready. They would have needed at least an entire year to be ready to compete with the nazis.
>folded within a month
Yes. The weak part of the french army was pierced completly, the solid forces were surrounded, the english left Dunkirk. Basically, the french still had forces in june 1940, and could have tried to resist.
And, some people wanted to resist. A lot, in fact. There were projets of a Franco-British union, so the french army could still live out in great britain and continue the fight. But in the end, Philippe Pétain took power, and decided that it wasn't worth it, that it was better to be a nazi province than the lap-dog of the UK. Charles de Gaulle refused this, went to Churchill, and used the french colonies to form a new army, the Free French Forces.
>aided in jew deportations
Yes. There's no excuse for that.
But you would notice that it's only the Vichy Regime who actively tried to hunt down jews, especially the extremist Pierre Laval. You'll also find, if you study this part of history, that thousands of gendarmes and french policemen were fired because they helped jews to escape.