Why are we going on a path we cannot fund?
What makes you think we cannot fund it?
When the requirement to defend the nation comes up, the defence budget will get a boost in spending. During the 70s, our defence spending had almost reached 40% of the yearly govt spending. Now it's barely even 10%, just above 15% if you include pensions. However just 5% more will add about $25B to the capital budget. That will pay for everything we are lacking right now and a whole lot more than that.
If we end up spending 40% of our spending on defence, then we will have a $190B defence budget.
It's merely a matter of priorities.
Our strength is our ability to improvise. Instead of Light Tanks which will result in a Babu style wild goose chase with item numbers from DRDO, we should be focusing on our ability to kill the light tanks the Chinks throw at us.
Oh, you think we have supermen, faster than a speeding bullet, stop a train with one hand etc?
Higher number of desi and foreign ATGMs that make deploying light tanks a costly idea for the chinks.
If Youtube has given you the assumption that regular infantry can fight tanks with ATGMs, then you have to stop watching Youtube. It's not as simple as aim and shoot. You are infantry, the best speed you can manage for short periods of time is just 10-15Kmph with all that heavy gear. A tank will do thrice your speed and will be able to see 3 times your distance. A light tank is even faster. And tanks are also generally well supported from the air, helicopters, UAVs etc. So your infantry is going to be seen and killed long before they can take action.
Just because you have a hand-held ATGM doesn't mean you go charging into a tank formation like a superhero, that's not how it works.
Now, you can put your ATGM on a pickup, but advanced electronics today will pick you up long before you can pick up a tank for targeting. So it's the same problem. Hell, even if you get first shot, the tank will simly use its main gun to kill you and then avoid that unguided ATGM easily after that.
ATGMs are not an army's primary anti-tank capability, neither are MANPADs the primary anti-air capability. But defintiely are for insurgents, we are not insurgents.
Instead of matching US ship for ship and carrier for carrier they invested in area denial tech. India could do well to build on the idea.
That's not how it works in a fight between two armies. You are confused between an insurgency and warfighting.
You don't outmatch the enemy ship for ship overall, you outmatch the enemy by having more than what your enemy has within your theatre. If the enemy has 2000 tanks, but can only bring 500 to your theatre, then you should match those 500 tanks with 500 tanks of your own. But when you try and match the enemy's 500 tanks with 5,000 ATGMs, then you've already lost.