The phrase "to reinforce the point" means to provide additional evidence or support to make a statement or argument stronger and more convincing. Full definition
Spending your time reinforcing your point of view is the opposite of challenging yourself. (entrepreneur.com)
This number is itself high, which only reinforces the point that dividend - paying stocks have reached unsustainable levels of valuation. (hardassetsalliance.com)
To reinforce the points made above, estimate the money you spent in college on things you didn't really need, or have very little value to you today. (studentloansguy.com)