Quite the contrary- I hope we’d all agree any “savings plan” that keeps all the money in cash making 0% is a terrible way to save.
You are still conflating saving and investing.
Saving = putting aside money with the expectation to have at least 100% of the principal saved available at any given time in the future.
Investing = taking a portion of savings (or current earnings) and investing it in something with the hope (but no guarantee) that it will grow or generate income for (or in) the future, but understanding that at certain points it might be worth less than the amount invested.
I'd love it if you could explain why you think WL and UL have high fees and costs given what they offer.
Also, are you familiar with PUAs? Those might be a very effective way of saving. But you can only take advantage if you have a WL policy as a basis for them.