Reform, make promises that, in the real world will create more problems, than it solves, for example,
Removing the minimum wage, people still need to earn enough to live, otherwise the state has to pick up the difference
Reducing the amount of state help, so, let's take the first point, removing the minimum wage, then also reducing, or scrapping universal credit, anyone see the problem?
Removing the triple lock, there needs to be some way that ensures people on state pension, do not fall behind, if inflation and cost of living go up. Politically hitting the poorest, then the pensioners, is a sure way to ensure you never get to form a government again,
Boats, we would have to remove ourselves from several major international laws and the ECHR if reforms policies to stop asylum seekers coming to the UK stand a chance, doing that, will have adverse repercussions on how other countries deal with us, then there's the deportation problem, we need agreement with other countries to be able to return failed asylem seekers
we can't just drop them on the French coast, and say it's your problem, the French navy would turn round any British ship once it enters French waters, so what do you do then, 1000's of migrants, that need to be housed, the more extreme xenophobes would take us down a very dark path, especially if whipped up to such an extent, that they don't view these people as being worth looking after, or protected from extreme violence.