The two-party system, by itself, is not inherently bad. Even countries with multiparty elections tend to have two dominant parties. What hurts the US is the electoral system used, first-past-the-post voting (FPTP voting). Since only the candidate which wins a plurality of the vote gets representation, it makes it much easier to manipulate the results and silence minorities and opposition.
Another rarely discussed, yet very serious, downside to being a professional poker player is that it causes you to greatly devalue money. If you compare a lawyer who makes $500/hr with a poker player who makes $500/hr, the poker player will never have anywhere near as much value for the money as the lawyer does.or a professional poker player to average $500/hr, he has to be playing fairly high stakes games in which you are winning and losing sums between $10,000 and $100,000 on an hourly basis.
If that sounds like a lot of money, it is. It's also a lot of poker playing. $240,000 of tournament entries per year is $20,000 of tournament entries each month, or about $5,000 per week for 48 weeks of the year (with four weeks off for good behavior). $1,000 per day, five days a week, if you want a weekend.