There are probably a literal handful of people that have argued for absolutely no wall. It's effectively a straw man argument. I don't think anyone has an issue with a fencing of some kind where you also have border checkpoints and whatnot on both sides of the border.
A border wall stretching through uninhabited desert is a huge waste of money and resources and is horribly damaging to migratory species and the environment (like when they rip up saguoro that are 100+ years old [they only tend to get their first "arm" around 75-100 years of age]). It's also especially stupid when most people are coming through legal crossings.
It wouldn't be such an issue if we didn't have a horribly broken-by-Republicans immigration system that requires people fill out huge amounts of paperwork and wait years for resolutions. We should be making it easier for people to immigrate here - both those that want to stay after being educated here, and those that simply want to make a better life for themselves. I welcome people that have the want to enrich my country culturally and economically, and I also think it's a moral imperative that we try and help those fleeing economic, social, and political persecution.