You're really opening a can of worms here.
No, they said "all men are created equal", which is an outdated mode of thinking. We now know that humans weren't 'created'. We evolved over time, on different continents, in different climates, with entirely different Darwinian trajectories. As such, when it comes to certain things, no, I do not believe all people are 'equal'. It's absurd to think this, no different than it's ridiculous for us to think that all breeds of horses stand an equal chance of winning the Kentucky Derby.
The idea of universal equality amongst men is a nice thought, but per all evidence, it just isn't true.
Still, I do believe that whatever genetic difference may exist can be mostly overcome with upbringing and a well ordered social structure.
India is making great strides, but it has baggage. The average IQ 81, yet supreme genius has originated from there. Some of the worlds wealthiest men are from India, yet it has some of the most staggering poverty on earth. I believe this is where a lot of that 'equality complex' is derived. Professional, capable Indians don't want to be judged based on the baggage and can be sensative about how they're perceived.
Every time I've traveled there on business, I've encountered this sentiment as a regular matter of course.