Sorry, but this just isn’t true. While luck is definitely a big factor, especially in the short term, over the course of the very long haul the most skilled players who make the right decisions most often rise to the top.
Making the right decisions means trying to correctly guess what cards your opponents have and (in many cases) bluffing your opponents to make them think you have better cards than you actually do. This takes a combination of some skill and a lot of pure luck.