If you have root, use either ROM Toolbox or a root browser to convert your home of choice to a system app (with ROM Toolbox there is an option in the App Manager, with a root browser you just move the .apk to the /system/app folder). Restart and make sure EVERYTHING works fine. If this is the case, then you may freeze/uninstall LGHome. Be warned though, if you do this and your chosen home does not work you have soft bricked your phone. You will have to recover it with the unbricking guide. I can confirm that it DOES work. I have done this with GoLauncher and I uninstalled LGHome with no problems so far, but I cannot guarantee this will work with any other home app.