These days it's nearly impossible to perform that 51% hash rate attack after looking at the hardware different people are using and not at the same place.
It is not exactly because of the hardware that people use though. It is mainly about how hard it is to acquire as many number of that hardware. For example back when people were mining bitcoin with GPUs it was still impossible to perform a 51% attack because there were no better hardware like ASICs to provide much higher hashrate so you still had to buy a large number of GPUs to gain 51% of the hashrate and that was impossible.