I don't see how the line is any thinner than the line between any other behaviour with consent and without consent. You may as well say that freely agreeing to sex makes you more likely to be coerced into sex at a later date.
Sorry no, people having sex is a fact of life. People derive pleasure from it, and it's necessary for reproduction as well. This isn't about consent vs not consent.
Tracking people is unnecessary, all these excuses from people saying they can check when their husband is on his way home so they can get tea ready. Sorry but unfettered access to your location at a press of a button is barmy. There is no need to track someone to check they are on their way home, it's neurotic is what it is. Call or text like a normal person if you want to know where someone is, when they'll be home etc and treat them with respect and trust.
All consensual, yeah? What if the partner turns off their location because they don't like it anymore? This would result in anxiety and assumptions they are up to no good from the other partner. It would create resentment. Once you opt in, there's no opting out lest you want to create an issue.
Entire families tracking each other at all times under the guise of keeping each other safe, getting help when they're lost, and having dinner put on just in time for when you walk through the door, is just not normal. It's a clear lack of boundaries whichever way you paint it. You can use Google maps or if you're too inept to use that, you can send your location/coordinates in that moment to someone for help. You don't need 24/7 tracking in case you get lost on the way to the bathroom. How often are people getting lost to require constant tracking???
Just because technology advances, doesn't mean that it's inevitable and we have to just accept tracking as the new norm and part and parcel of family life. It's insidious.