also tanks are useful in a war
A little. To be really useful in our theatre, we would need thousands of them, like Russia currently has, and not 200 or 300. Instead of tanks, we need thousands of antitank and anti-aircraft stuff which is much cheaper and millions of civilian Poles could learn to use it. While tanks are operated only by the army.
caracals may be multi purpose but they are not attack helicopters
No, they aren`t. But their usefulness is the same as tanks. Your tanks against my Caracals - it is a draw.