Yes, there are easy ways to make child themes, and some people argue that you don’t even need one.
However, even the naysayers (for the record, I’m in “always use a child theme” group) won’t deny that you need a child theme if you need to modify some theme files.
Also, if you’re going to add some functions, then it’s a must.
So, here’s a simple child theme…
no wait, a FREE DIVI CHILD THEME for you
that allows the Divi builder on ALL post types.
Yup, all custom post types, including Woocommerce products.
Update: changed the cascade order so the main.css file gets highest priority. (Hopefully)
Update: Added admin styles.