Your points don't make sense. Bitcoin can be bought with your wage or less than that, you don't need to buy 1 BTC or 2 BTCs to buy Bitcoins. You can buy 100000 satoshis and you you are already buying Bitcoins.
The adoption is low because Bitcoin is new, started few years ago and it's a innovative technology, things like this takes more time until become popular, for me it's going well and normal. Bitcoin potential will work on long term. Think big, Crypto Currency is a new step in the society evolution, everyone using this won't want to stop using.
Your points don't make sense. What does "Bitcoin is new, started few years ago, and it's a innovative technology" have to do with whether the OP thinks BTC is comparable to gold or worth of using as a currency? The features of bitcoin will not change with greater adoption or more time in existence. They are today what they will be tomorrow.
The ways in which Bitcoin is similar to gold - expensive to purchase with your wages (ie. spreads, exchange fees, bank transfer fees etc.), very limited on who will accept as payment (most vendors unwilling to accept due to the same reasons/ ie. expensive when changing back to fiat) and slow to transfer (debatable one).
He said BTC is limited on who accepts it as payment method, for now it's true. And I said currently few persons accept BTC because it's a new currency, it takes much time to make many people start using this, it's not overnight. The features of Bitcoin will change the adoption rates, if the features are good and interesting, more people will join it. Don't misrepresent what I said to look clever to your campaign manager.