Different music inspires different people. And secular music can definitely be inspiring. First of all, some is instrumental, and second of all, they’re not all about love. Many of them touch on the same themes that Jewish music does: hardship and adversity, courage, loss and death, friendship.
Also, love songs can be inspiring too. I would argue that the Rascal Flatts song “Bless the Broken Road” can provide chizuk to older singles. Google for lyrics if you don’t know it.