How with so much evidence to support continental drift how could scientists reject the idea?

Some scientists rejected the idea of continental drift because Alfred Wegener, who proposed the theory, lacked a plausible mechanism to explain how continents could move. In addition, the scientific community at the time held onto the prevailing belief in static continents and were resistant to accepting a new paradigm. It wasn't until the development of plate tectonics in the 1960s that continental drift became widely accepted.