Off-late I am noting that Indian products are much superior to even European and Japanese products let alone Chinese product. I am going to start a thread wihere I have practical usage experience shortly. Collating data to post. Stay tuned.
I'm sure there would be some products manufactured in India which would be superior. However, the experience you have posted is from the point of view of an enthusiast, someone who is interested in a DIY approach. Unfortunately this approach doesn't work for mass market products like cell phones, televisions, etc. Could you assemble a high quality television on your own with components manufactured in India? Absolutely not.
Like it or not, speaker tech has not changed a lot over the years. Hence quality components are available in India. Same goes for products like refrigerators, washing machines, mixer grinders, fans, etc. You will find all these products from Indian manufacturers and of good quality. I have myself bought Godrej refrigerator, IFB washing machine, Usha mixer grinder over the last couple of years. All of these are Indian brands. Unfortunately though, a lot of manufacturing has shifted to China for these components as well since it's easier/cheaper to procure from China than to manufacture in India.
However, the story is completely different for high tech products. When it comes to components like cell phones, laptops, televisions, etc., none of these are manufactured in India, not even their components. Camera lenses are not produced in India, nor are RAM or hard drives, let alone SoCs and processors. Most LCD panels used in India are imported.
And the problem is that these are the products on which people are spending bulk of their money. Just think about how many people you know who would have spent 1 lakh on mobile phone/TVs vs how many people you know who would have spend the same on speakers over the last 3 years. Each and every person I know has a mobile phone which cost at least Rs. 15,000. But I know exactly zero people who have bought a home theater.
And that's the problem why boycotting Chinese goods is not possible. Electronics, on which people spend bulk of their money these days, are just not manufactured in India. Even if you buy Indian brands, the underlying components are mostly sourced from China.