My wife refuses to work and isn't contributing to the household. Any advice?

We have been married for 6 years, and my wife has not worked for about 3 years. The entire financial burden is on me. Our payments have increased even more because we bought a new house. The salary I receive is not small, but we have had to restrict our social life. In fact, it would be much more comfortable if my wife worked. How can I explain this situation to her?

My wife refuses to work and isn't contributing to the household. Any advice?
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