This comment encapsulates a big part of why people like Trump. They are sick of inaction in the name of careful consideration and nuance.
And I kinda understand it. By analogy, I've see this many times at different companies I've worked at. Whether it's a 20-year scripting engine or a hastily put together build system that barely works but the entire project depends on, whenever someone suggests to replace it you just get reason after reason for why you have to move slowly and consider all the fine details. Months and years pass and the core system never improves because an "old guard" shuts down every attempt to change it. Finally, someone new comes in and calls bullshit and says enough's enough, and rallies a team to rebuild it. After a difficult process, you finally have something that works better than the old system ever could.
Yeah, I understand the story doesn't always end well, but the analogy above helps me understand Trump's appeal.