أحسن الله إليكم Is it haraam to say that the so and so religion's people are so good at this (eg. the Hindus are such a hardworking people), and the problem with Muslims is so and so which is preventing them from being successful? (eg. Muslims are lazy so they don't get jobs)? !بارك الله فيك

Ustadh AbdulAziz al-Haqqan

Then All Muslims will be against u at the day of judgement, therefore you must say some peope are lazy for example or some Muslims not make it general to all Muslims as many Muslims are more active than you, be very very careful from generalizations.