The 2022 $100 calls are trading for $337.65 right now, when TSLA is $430.00 - i.e. the low strike price calls are trading at a $7.65 premium.
2022 $100 puts are going for $6.60 - so in fact it's $1 cheaper to buy the stock and $100 puts to insure against catastrophic loss.
In general there's no free lunch: stock and option prices are closely arbitrated.
Huh?
If you buy the call, you will be out of pocket $337.65.
If you buy the stock AND the put, it will cost you $430 + $6.60 = $436.60.
If TSLA implodes such that the call is worthless you'd be out your purchase price $337.65 (x100).
With the second strategy, you'd exercise the put and get back $100, so your loss is $436.60 - $100 = $336.60 (x100)
So the second strategy did come out $1.05 ahead in the case of implosion. But it was in no way
cheaper to acquire in the first place. In fact you tide up $98.95 (x100) more money to take on the stock+put posiiton. That's money which could very likely earn more than $1.05 in interest (0.53 % APR).
If instead TSLA rockets, you're still only $1.05 ahead for the stock + put at expiration. But if it rockets soon, then increased volatility might actually gain you more on the call if you exit early. Plus it did give you some small amount of leverage, possibly allowing you to take a position that you otherwise couldn't take.
The actual downside to the call is (1) limited time - the position ends in 2 years so if things go badly you can't just wait it out. This is a serious risk -for sure the most important risk of the call strategy (2) If successful and you sell the call before expiration it will be a short-term capital gain (in the US anyway) regardless of how long you held it. If instead you exercise it, then that starts the clock for the holding period so a year later you would have a long-term capital gain.
Just as a personal cautionary tale, I bought 6 July 2019 calls with a $250 strike a the end of Q3'18 when the stock was in the $360's. Those calls expired worthless and it was only yesterday that my portfolio position recovered to where I was when I bought those calls. If they'd been longer term I could have waited it out if I had nerves of steel. The time limit of options is their big deal.