......Are hurricanes intensifying more rapidly than ever before?....
No.
Nor are hurricane more numerous.
I was having this discussion earlier today, the first weather satellite went up in space sometime around the 1960s, prior to that for those hurricanes that never came near the mainland US, we didn’t know how many hurricanes formed during any one year.
If you get away from fearmongering, the real science predicts that, if there is global warming, there shall be less hurricanes.
In Earth history (and there is science behind that!) every time it got warmer, the hurricanes abated.
The Earth warming in general affects mostly temperatures around poles and in the moderate belt.
Tropics climate does not change.
(see Venus, she is the ultimate green house, her temperatures are staggeringly huge, but the difference between equator and poles is practically nil)
So the temperature gradient between warm and colder zones gets lower. Hurricanes are triggered by this gradient.
That there is no decrease of hurricanes testify to the fact that there is hardly any warming!