Inflation depends on the price of the commodities, demands, supplies etc. Bitcoin cannot effect the demands or supplies for any goods or services (allmost all). So, only the price is left out. But the price mostly depends on the demands and supplies. I don't understand how come Bitcoin effects the inflation. Yes, I agree BTC or other cryptos can effect the economy of a country but I don't believe it would be the inflation.
I have to differ with you on this. What happens if goods are imported into the country now at 1BTC for $6-7k and soon at the end of the month the price of 1BTC fall sharply or rise very high. This will definitely affect the price of goods.
It will also affect the demand and supply of goods, for instance if a glossary store was stocked weeks ago when the price was $9k and the glossaries are finished now that the price is about $6k; the store will run at a lost. Because there has been a change in the value of their capital, because the value capital has depreciated.