I have no clue what people envision when they considering a secure border. It’s impossible.

Indeed, it's like people completely forget about such attempts in the form of the Berlin-wall or the border between the two Koreas.

Heavily militarized borders with everything technically possible defending them, regardless of inhumane it was/is, yet didn't stop people from attempting to cross and actually crossing.

Even the great wall of China isn't a good example because afaik that wasn't built to stop immigration, it was built to stop raiding parties.

It doesn't need to be perfect. Nobody is arguing for it to be impenetrable, just better secured than it is.

Murder or theft will probably never stop either, I fail to see your point. I think deporting illegals from US soil results in less illegals on US soil, i would have thought that was obvious, but it could be Trump creeping into my mind and making me think such irrational thoughts.

Migration != Murder OR theft

Even the least intelligent human knows that.

The term "illegals" is misleading because they don't do anything illegal when they try to find a future for their family that is worth living.

The USA is founded by migrants so there is not even a real "US-citizen" by DNA, color or whatever. The same goes for Germany and other countries - they where founded by immigrants which is consistent with the ongoing migration of mankind.

You fail to see my point because you don't want to understand it. So much is obvious.

Entering a country illegally is a crime in every country, not only in the US.

It's not misleading, entering the country without authorization is quite literally against the law.

You are conflating immigrants with illegal entry. There's no problem with legal immigration.