If Ruger never bought Marlin and Ruger came out with their own lever gun, sure many gun owners were like it.
But Ruger did buy Marlin, and killing off an iconic brand after buying it in this situation doesn't make sense. Gotta remember that some defunct firearms names were brought back from the dead (or reinvented) because of name recognition and the sales that would create. Henry is one fine example, so is Springfield Armory.
Then there are other brands that were kept alive like Winchester, Dan Wesson, and now Colt. CZ certainly isn't going to rebrand all those classic revolvers and 1911s as CZs when they know there is still a huge amount of potential customers that want a "Colt".
There's always some kid or teenager that grew up seeing their dad's or grandpa's Winchester and that can plant a seed for when that kid grows up and has some spending money. Same thing has happened with Marlin even though Remington bought them years ago and the same thing will happen with Ruger owning Marlin.
I'm a prime example. I grew up knowing people with Marlin .30-30s. My first Marlin was a JM Marlin and I like the design and layout of the Marlins so much that I bought a Remington Marlin when the time came. If Ruger had bought Marlin years ago instead of Remington, my Rem-Marlin would be a Ruger Marlin. But one thing is for sure, it is highly probable that if that if Remington had rebranded all the Marlin's as Remingtons, I would have sought out a higher priced Winchester. Even though it would've been made in Japan.