A lot is said on the internet of the practice of loading companies with debt, but done within reason this is the financially responsible thing to do. There's even a financial theory that debt provides a disciplining effect on management[0], meaning that the management of companies with reasonable debt levels are less likely to take on unfavorable risks and more likely to find returns above the WACC.
The point of leverage is that it increases returns. Here's a really good example of that in the context of real estate, where leverage almost doubles the IRR. [1]
[0]https://www.jstor.org/stable/1818789
[1]https://www.youtube.com/watch?v=ocnMZDp52zA&list=PLyyvHNlYa0...