No offence Delft, but the Dutch is hardly the best example of a well rounded defence strategy, and I am sure you are greatful the Netherlands is in such a stable, peaceful and prosperous party of the world. But for most of the rest of us, a powerful military is a necessity, not a choice.
The death of the tank, like so many similar things before it, has been greatly exaggerated. It's combination of protection, mobility and firepower is essential and irreplaceable in missions ranging from counter insurgency to full-blown warfare with a near peer and everything in between.
It is no super weapon and there are counters to it, but then can anyone name me a single weapons system that is threatened by nothing? Are they all obselete now?
For every counter to tanks, there are counters to them. You got ATGM teams camped in a line ready to repel a tank charge? Well good for you, but since my tanks are so much more mobile, why don't I just have them drive 60km down the line and force a breach there? Or maybe have artillery spray your whole line with air bursting frag shells while my tanks drive up, impervious to all the shrapnel while your ATGM teams gets shredded or stay hunkered down in their foxholes easy to be overrun and rounded up?
The tank brings something formidable and irreplaceable to th battlefield, and like all spear and shield arms race stories, sometimes one will have an advantage over the other, but neither have, nor looks likely to hold a decisive advantage for long. In this context, if you vastly get rid of your tanks and your opponent doesn't, then he will have a material advantage over you that he can exploit for massive, maybe even decisive, tactical and strategy advanage.