Don't forget bitcoin gets a lot weaker at every halving.
Good luck having your wealth in a POW coin with inflation below 2%.
Define "weaker" in your suggested context and provide historical evidence to support this claim.
A = resources you have to waste to attack the coin
B = market cap of the coin
k = constant
Y = Probability the coin is succesfully attacked in the real world = k * (B/A)
Since A in a POW coin is proportional to inflation rate you can conclude that as inflation goes down the probability of an attack increases.