As many of the replies here have made quite clear, it is not being "slack", still less, "disorganised" that leads people to respond to texts in what you consider to be a less than timely manner. This is your timetable, not theirs, a timetable determined by you, not them. And - by their choice (not to reply) they are clearly rejecting your timetable.
Their timetable is not yours - by choice; outside of a coercive domestic situation, or a professional situation, one cannot control (and nor should one wish to exert this degree of control) the actions of others - friends, relatives, acquaintances, - how - and when - people choose to respond.
As
@maflynn has already pointed out, the only thing you can determine is your reaction. The only thing you can control is your own response to this.
People have other priorities, and to them, their choice not to respond, or to respond when they wish - is equally valid; they are neither "disorganised" nor "slack", rather, they are busy at work and wish to switch off when at home, or they simply choose not to respond, or both.
And, not responding to a text is also a choice, and it is a valid choice.
I would argue that people are making a choice to exert control - by claiming time and boundaries - in their own lives, when they choose not to respond.
The thing is, people may be extremely "organised" in one area (such as punctuality) and a lot less bothered, or concerned, about replying in a short period of time to texts.
Actually, if I am meeting someone, (or someone is meeting me), by arrangement, in a specific place, that
is a time when I will send a text ("I'm running late; bus caught up in traffic; am hunting the bins which were emptied today; will be there in five minutes" sort of thing) - which are all all examples of messages that I have either sent or received.
I take forever to reply because I'm an insanely busy person and I simply can't answer every message I get every day. I get hundreds between texting, email, facebook messenger, instagram, teams, outlook etc and I have a job that requires a lot of focus so...
...I turn my phone on silent and ignore it all. I'm not some bored person on their phone all day, even after work I don't have my phone on me because I'm exhausted from the constant communication.
It's nothing personal against anyone who texts me, but every single person wants an instant response and I don't have enough energy for that.
I hate hate hate the idea that we're supposed to be reachable 24/7.
Excellent post, and well said.
@usagora: If the tone of your replies to
@maflynn is how you respond to tardy texts, I am not surprised that people decide to let a text from you stew for a few days or weeks before sitting down and steeling themselves to respond. At least, that would be my response.
In any case, for what it is worth, he - and everyone else here - have replied to you in good faith, even if they disagree with how you frame your position; accusing someone of "gas-lighting" is both unfair and untrue.
Nobody has gaslit you; they have disagreed with you, and explained why their stance on tardy text replies differed from yours; above all, they have made it clear that they do not - for a variety of reasons - choose to abide by a set of standards and timetables set by someone else, if the existing relationship (such as a professional one) does not require that.
In an earlier post, I have written that an agreed etiquette for communicating via modern means of communication (mobile/cell phones, social media) has yet to evolve, or to be established. That will happen, but not for some time yet.